JP2005290577A - Polyester composite false-twist yarn - Google Patents
Polyester composite false-twist yarn Download PDFInfo
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- JP2005290577A JP2005290577A JP2004103525A JP2004103525A JP2005290577A JP 2005290577 A JP2005290577 A JP 2005290577A JP 2004103525 A JP2004103525 A JP 2004103525A JP 2004103525 A JP2004103525 A JP 2004103525A JP 2005290577 A JP2005290577 A JP 2005290577A
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- 229920000728 polyester Polymers 0.000 title claims abstract description 172
- 239000002131 composite material Substances 0.000 title claims abstract description 68
- 239000000835 fiber Substances 0.000 claims abstract description 51
- 239000004744 fabric Substances 0.000 claims abstract description 36
- 239000006224 matting agent Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 29
- 238000010521 absorption reaction Methods 0.000 abstract description 26
- 239000011148 porous material Substances 0.000 abstract description 12
- 150000001875 compounds Chemical class 0.000 abstract description 10
- -1 polyethylene terephthalate Polymers 0.000 description 15
- 239000003513 alkali Substances 0.000 description 14
- 230000035699 permeability Effects 0.000 description 13
- 239000003795 chemical substances by application Substances 0.000 description 11
- 238000009987 spinning Methods 0.000 description 10
- 208000016261 weight loss Diseases 0.000 description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 238000004043 dyeing Methods 0.000 description 9
- 230000004580 weight loss Effects 0.000 description 9
- 239000002759 woven fabric Substances 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 238000009941 weaving Methods 0.000 description 7
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- 238000002788 crimping Methods 0.000 description 6
- 229920000139 polyethylene terephthalate Polymers 0.000 description 6
- 239000005020 polyethylene terephthalate Substances 0.000 description 6
- 239000011734 sodium Substances 0.000 description 6
- 229910052708 sodium Inorganic materials 0.000 description 6
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 5
- 230000001771 impaired effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- WOZVHXUHUFLZGK-UHFFFAOYSA-N dimethyl terephthalate Chemical compound COC(=O)C1=CC=C(C(=O)OC)C=C1 WOZVHXUHUFLZGK-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 239000003963 antioxidant agent Substances 0.000 description 3
- 230000003078 antioxidant effect Effects 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 239000010419 fine particle Substances 0.000 description 3
- 239000003063 flame retardant Substances 0.000 description 3
- 239000012760 heat stabilizer Substances 0.000 description 3
- 230000001788 irregular Effects 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- 229920000570 polyether Polymers 0.000 description 2
- 239000011112 polyethylene naphthalate Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 229920002215 polytrimethylene terephthalate Polymers 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 2
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 2
- ISPYQTSUDJAMAB-UHFFFAOYSA-N 2-chlorophenol Chemical compound OC1=CC=CC=C1Cl ISPYQTSUDJAMAB-UHFFFAOYSA-N 0.000 description 1
- KUEAXNDTBSKPSJ-UHFFFAOYSA-N 3-(2-hydroxyethoxycarbonyl)benzenesulfonic acid Chemical compound OCCOC(=O)C1=CC=CC(S(O)(=O)=O)=C1 KUEAXNDTBSKPSJ-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- VSGNNIFQASZAOI-UHFFFAOYSA-L calcium acetate Chemical compound [Ca+2].CC([O-])=O.CC([O-])=O VSGNNIFQASZAOI-UHFFFAOYSA-L 0.000 description 1
- 239000001639 calcium acetate Substances 0.000 description 1
- 229960005147 calcium acetate Drugs 0.000 description 1
- 235000011092 calcium acetate Nutrition 0.000 description 1
- 206010061592 cardiac fibrillation Diseases 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000002781 deodorant agent Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000000635 electron micrograph Methods 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 230000002600 fibrillogenic effect Effects 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 239000000077 insect repellent Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000005080 phosphorescent agent Substances 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Landscapes
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Woven Fabrics (AREA)
Abstract
Description
本発明は、かさ高性、スパン感を有し、さらには、優れた吸水性とドライ感、防透性にも優れたスパンライクポリエステル布帛を得ることができるポリエステル複合仮撚加工糸に関する。 The present invention relates to a polyester composite false-twisted yarn that has a bulkiness and a span feeling, and that can obtain a spun-like polyester fabric that is excellent in water absorption, dryness, and permeation resistance.
従来、伸度差を有する２種以上のポリエステルマルチフィラメント糸を引き揃えて交絡し、引き続いて仮撚加工することにより得られる、かさ高性、スパン感に優れた２層構造の複合仮撚加工糸が知られている（例えば、特許文献１、特許文献２参照）。 Conventionally, two layers of polyester multifilament yarns with different elongations are entangled and entangled, followed by false twisting. Composite false twisting with a two-layer structure excellent in bulkiness and span feeling. Yarns are known (see, for example, Patent Document 1 and Patent Document 2).
しかしながら近年、織編物の風合い、肌触り、外観等に関する要求がますます高まってきており、従来の複合仮撚加工糸を用いて製編織された布帛では、一応のかさ高性やスパン感は得られるもののまだ十分なものではなかった。特に肌に直接触れることの多いブラウスやシャツなどの用途においては、更なるドライ感、ドレープ性、下着等が透けて見えない高い防透性などが得られていないという現状があった。 However, in recent years, there has been an increasing demand for the texture, texture, appearance, etc. of woven and knitted fabrics, and fabrics knitted and woven using conventional composite false twisted yarns can provide a certain bulkiness and span feeling. It wasn't enough yet. In particular, in applications such as blouses and shirts, which often come into direct contact with the skin, there has been a situation in which further dryness, drape, high permeation resistance that cannot be seen through underwear has not been obtained.
本発明は、上記の背景に鑑みなされたものであり、その目的は、良好なかさ高性、スパン感を有するとともに吸水性、ドライ感、防透性に優れた、スパンライクなポリエステル布帛を得ることができるポリエステル複合仮撚加工糸を提供することにある。 The present invention has been made in view of the above-mentioned background, and the object thereof is to obtain a spun-like polyester fabric having a good bulkiness and a feeling of span, as well as excellent water absorption, dry feeling and permeability. It is in providing the polyester composite false twisted yarn which can be manufactured.
本発明のポリエステル複合仮撚加工糸は、コア部がポリエステルマルチフィラメント糸Ａより構成され、シース部がポリエステルマルチフィラメント糸Ｂより構成されてなる２層構造の複合仮撚加工糸であって、前記ポリエステルマルチフィラメント糸Ｂを形成するポリエステル単糸が、ポリエステルａ成分とポリエステルｂ成分からなる芯鞘型複合繊維であり、芯部を形成するポリエステルａは艶消し剤を５重量％以上含み、鞘部を形成するポリエステルｂは幅が０．００１〜３μｍ、長さが幅の３〜５０倍である微細孔を有し、かつ繊維断面の芯部の面積と鞘部の面積との比が３５：６５〜８０：２０であることを特徴とする。 The polyester composite false twisted yarn of the present invention is a composite false twisted yarn having a two-layer structure in which a core portion is constituted by a polyester multifilament yarn A and a sheath portion is constituted by a polyester multifilament yarn B, The polyester single yarn forming the polyester multifilament yarn B is a core-sheath type composite fiber composed of a polyester a component and a polyester b component, and the polyester a forming the core part contains 5% by weight or more of a matting agent, and the sheath part The polyester b which forms the fiber has fine pores having a width of 0.001 to 3 μm and a length of 3 to 50 times the width, and the ratio of the area of the core part to the area of the sheath part of the fiber cross section is 35: 65 to 80:20.
さらには、ポリエステルマルチフィラメント糸Ａとポリエステルマルチフィラメント糸Ｂとが、３：７〜１：９の割合（重量比）であることが好ましい。 Furthermore, it is preferable that the polyester multifilament yarn A and the polyester multifilament yarn B have a ratio (weight ratio) of 3: 7 to 1: 9.
また、もう一つの本発明は、上記の本発明のポリエステル複合仮撚加工糸を含むポリエステル布帛であることを特徴とする。 Another aspect of the present invention is a polyester fabric including the above-described polyester composite false twisted yarn of the present invention.
本発明のポリエステル複合仮撚加工糸によれば、良好なかさ高性、スパン感を有するとともに吸水性、ドライ感、防透性にも優れたスパンライクなポリエステル布帛を得ることができる。 According to the polyester composite false twisted yarn of the present invention, it is possible to obtain a spun-like polyester fabric having a good bulkiness and a feeling of span, and also being excellent in water absorption, dry feeling and permeability.
以下、本発明の実施の形態について詳細に説明する。
本発明のポリエステル複合仮撚加工糸は、コア部がポリエステルマルチフィラメント糸Ａより構成され、シース部がポリエステルマルチフィラメント糸Ｂより構成されてなる２層構造の複合仮撚加工糸である。
Hereinafter, embodiments of the present invention will be described in detail.
The polyester composite false twisted yarn of the present invention is a composite false twisted yarn having a two-layer structure in which a core portion is made of a polyester multifilament yarn A and a sheath portion is made of a polyester multifilament yarn B.
ここで、かかる２層構造は、ほぼ芯鞘構造になっておればよく特に限定されないが、コア部の芯糸の周りにシース部の捲付き糸が交互撚糸状に捲きついた、実質的に太さ斑のない構造であることが好ましい。かかる２層構造糸において、芯糸と捲付き糸との構成フィラメントが互いに交絡した部分を有し、これにより前記交互撚糸状の捲付き構造が安定に保持される。このような２層構造糸は例えば、伸度小なるポリエステルマルチフィラメント糸Ａと、伸度大なるポリエステルマルチフィラメント糸Ｂとを引きそろえて空気交絡処理を施した後、同時延伸仮撚捲縮加工を施すことにより、コア部のマルチフィラメント糸Ａに、マルチフィラメント糸Ｂがシース部として巻きついた２層構造糸として形成することができる。 Here, such a two-layer structure is not particularly limited as long as it is substantially a core-sheath structure, but the sheathed portion of the core portion of the core portion is substantially twisted in the form of alternating twisted yarns. It is preferable that the structure has no uneven thickness. In such a two-layer structured yarn, the constituent filaments of the core yarn and the hooked yarn have portions entangled with each other, whereby the alternating twisted yarn-like hooked structure is stably maintained. Such a two-layer structure yarn includes, for example, a polyester multifilament yarn A having a low elongation and a polyester multifilament yarn B having a high elongation, subjected to an air entanglement treatment, and then simultaneously drawn false twist crimping. Can be formed as a two-layer structure yarn in which the multifilament yarn B is wound around the multifilament yarn A of the core portion as a sheath portion.
本発明のポリエステル複合仮撚加工糸において、芯部に位置するポリエスエステルマルチフィラメント糸Ａは、ポリエステルからなる単糸によって構成されているものである。ここでポリエステルとしては、ポリエチレンテレフタレート、ポリブチレンテレフタレート、ポリトリメチレンテレフタレート、ポリエチレンナフタレートなどが特に好適である。またポリエステルには、本発明の目的を損なわない範囲で、酸化防止剤、紫外線吸収剤、熱安定剤、難燃剤、酸化チタン、着色剤、不活性微粒子などの任意の添加剤が含まれていてもよい。さらには、ポリエーテルと有機スルホン酸塩を含むポリエステルであっても良い。また、ポリエステルマルチフィラメント糸Ａは単繊維の横断面形状は特に限定されず、丸だけでなく、丸中空、三角、四角などの異型でもよい。 In the polyester composite false twisted yarn of the present invention, the polyester ester multifilament yarn A located in the core is constituted by a single yarn made of polyester. Here, as the polyester, polyethylene terephthalate, polybutylene terephthalate, polytrimethylene terephthalate, polyethylene naphthalate and the like are particularly suitable. Further, the polyester contains optional additives such as an antioxidant, an ultraviolet absorber, a heat stabilizer, a flame retardant, titanium oxide, a colorant, and inert fine particles as long as the object of the present invention is not impaired. Also good. Further, it may be a polyester containing a polyether and an organic sulfonate. Further, the cross-sectional shape of the single fiber of the polyester multifilament yarn A is not particularly limited, and it may be not only a circle but also an irregular shape such as a round hollow, a triangle or a square.
一方、本発明のポリエステル複合仮撚加工糸のシース部に位置するポリエステルマルチフィラメント糸Ｂを形成するポリエステル単糸は、ポリエステルａ成分とポリエステルｂ成分からなるからなる芯鞘型複合繊維である。ここでポリエステルとしてはポリエステルマルチフィラメント糸Ａと同じく、ポリエチレンテレフタレート、ポリブチレンテレフタレート、ポリトリメチレンテレフタレート、ポリエチレンナフタレートなどが好適である。 On the other hand, the polyester single yarn forming the polyester multifilament yarn B located in the sheath portion of the polyester composite false twisted yarn of the present invention is a core-sheath type composite fiber comprising a polyester a component and a polyester b component. Here, as the polyester multifilament yarn A, polyethylene terephthalate, polybutylene terephthalate, polytrimethylene terephthalate, polyethylene naphthalate and the like are preferable as the polyester.
さらにこの複合繊維の芯部となるポリエステルａ成分としては、ポリエステル重量を基準として艶消し剤を少なくとも５．０重量％含有していることが必要である。艶消し剤の含有量が５．０重量％未満では、十分な透け防止効果が得られない。艶消し剤としては、酸化チタン等従来公知のものでよい。かかるポリエステルａ成分には、本発明の目的を損なわない範囲で、酸化防止剤、紫外線吸収剤、熱安定剤、難燃剤、着色剤、不活性微粒子などの任意の添加剤が含まれていてもよい。 Further, the polyester a component that becomes the core of the composite fiber needs to contain at least 5.0% by weight of a matting agent based on the weight of the polyester. When the content of the matting agent is less than 5.0% by weight, a sufficient anti-slipping effect cannot be obtained. The matting agent may be a conventionally known one such as titanium oxide. The polyester a component may contain any additive such as an antioxidant, an ultraviolet absorber, a heat stabilizer, a flame retardant, a colorant, and inert fine particles as long as the object of the present invention is not impaired. Good.
一方、複合繊維の鞘部となるポリエステルｂ成分は、幅が０．００１〜３μｍであり、その長さが幅の３〜５０倍である微細孔を有している。さらには、幅は０．０１〜３μｍ、特に好ましくは０．０２〜２μｍであることが好ましく、その長さは幅の５〜５０倍であることが好ましい。これらの微細孔は多数あることが好ましい。微細孔の巾Ｄが０．００１μｍ未満では、十分な吸水性、光の乱反射効果が得られず、防透性も低下する。逆に、該巾Ｄが大きくなりすぎると繊維物性、特に引張り強度がが低下する傾向にある。また、微細孔の長さと幅の比Ｌ／Ｄが小さすぎると、繊維軸方向に毛細管現象等で流れる水が減り十分な吸水効果が得られにくい。逆に比が減少すると、孔が幅方向に拡大されているため、繊維物性が低下する傾向にある。なお、微細孔の深さについては、特に限定されないが、幅の０．５〜１０倍程度が適当であり、芯部まで到達していてもよい。なおここで微細孔は、任意に選定したｎ数１０の平均値で測定したものである。 On the other hand, the polyester b component which becomes the sheath part of the composite fiber has a fine pore whose width is 0.001 to 3 μm and whose length is 3 to 50 times the width. Furthermore, the width is preferably 0.01 to 3 μm, particularly preferably 0.02 to 2 μm, and the length is preferably 5 to 50 times the width. It is preferable that there are a large number of these fine holes. If the width D of the fine holes is less than 0.001 μm, sufficient water absorption and light irregular reflection effects cannot be obtained, and the permeation resistance is also lowered. On the other hand, if the width D is too large, the fiber properties, particularly the tensile strength, tend to decrease. If the ratio L / D between the length and width of the micropores is too small, the amount of water flowing in the fiber axis direction due to capillarity or the like is reduced, making it difficult to obtain a sufficient water absorption effect. On the contrary, when the ratio is decreased, the physical properties of the fiber tend to be lowered because the pores are expanded in the width direction. In addition, about the depth of a micropore, although it does not specifically limit, about 0.5 to 10 times the width | variety is suitable and may reach | attain to a core part. In addition, a micropore is measured by the average value of n number 10 selected arbitrarily here.
またポリエステルｂ成分は、艶消し剤を含まないことが好ましく、含んだとしても０．３重量％以下であることが好ましい。艶消し剤の含有量が増加すると、全体の防透性はわずかに向上するものの、吸水性に悪影響を及ぼす傾向にある。さらに、ポリエステルｂ成分は、本発明の目的を損なわない範囲で、酸化防止剤、紫外線吸収剤、熱安定剤、難燃剤、着色剤、不活性微粒子などの任意の添加剤が含まれていてもよい。 Moreover, it is preferable that the polyester b component does not contain a matting agent, and even if it contains, it is preferably 0.3% by weight or less. When the content of the matting agent is increased, the overall permeability is slightly improved, but the water absorption tends to be adversely affected. Furthermore, the polyester b component may contain any additive such as an antioxidant, an ultraviolet absorber, a heat stabilizer, a flame retardant, a colorant, and inert fine particles as long as the object of the present invention is not impaired. Good.
本発明で用いられる芯鞘型ポリエステル複合繊維は、艶消し剤を５重量％以上含むポリエステルａ成分が芯部に、前記の微細孔を有するポリエステルｂ成分が鞘部に配されている。ここで、複合繊維の芯鞘構造は、単芯型であってもよいし多芯型であってもよい。さらには、正芯（同心）の単芯型でもよいし、偏芯（偏心）の単芯型であってもよい。また、芯の一部が表面に露呈していても、本発明の主目的である吸水性と防透性が損なわれない範囲内であれば、さしつかえない。ただし、量産上の安定性、再現性を考慮すると正芯単芯型が好ましい。 In the core-sheath type polyester composite fiber used in the present invention, a polyester a component containing 5% by weight or more of a matting agent is arranged in the core portion, and a polyester b component having the fine pores is arranged in the sheath portion. Here, the core-sheath structure of the composite fiber may be a single-core type or a multi-core type. Furthermore, it may be a single-core type with a positive core (concentric) or a single-core type with an eccentricity (eccentricity). Further, even if a part of the core is exposed on the surface, it is acceptable as long as it is within the range in which the water absorption and permeation resistance, which are the main objects of the present invention, are not impaired. However, in consideration of stability and reproducibility in mass production, a positive core single core type is preferable.
複合繊維のポリエステルａ成分とポリエステルｂ成分の複合比は吸水性と防透性を両立させる上で、芯部の面積ａと鞘部の面積ｂとの比ａ：ｂが３５：６５〜８０：２０の範囲であることが必要である。ここで、芯部の面積ａが小さくなると、防透性が低下する傾向にある。逆に、鞘部の面積ｂが小さくなると、吸水性低下する傾向にある。なお、芯部が多芯型の場合、芯部断面の総断面積は、各芯部の断面積を合計したものとする。 The composite ratio of the polyester a component and the polyester b component of the composite fiber is such that the ratio a: b of the core area a to the sheath area b is 35:65 to 80: It must be in the range of 20. Here, when the area a of the core portion is reduced, the permeation resistance tends to decrease. On the contrary, when the area b of the sheath portion becomes small, the water absorption tends to decrease. In addition, when a core part is a multi-core type, the total cross-sectional area of a core part cross-section shall be the sum total of the cross-sectional area of each core part.
複合繊維の断面形状及び芯部の断面形状は、丸、三角、四角、扁平、中空など任意の形状が選定される。また、複合繊維の断面形状と芯部の断面形状は、同じであってもよいし、異なっていてもよい。 As the cross-sectional shape of the composite fiber and the cross-sectional shape of the core, any shape such as a circle, a triangle, a square, a flat shape, and a hollow shape is selected. Moreover, the cross-sectional shape of the composite fiber and the cross-sectional shape of the core part may be the same or different.
このような芯鞘型ポリエステル複合繊維を製造する方法としては、艶消し剤を５．０重量％以上含有するポリエステルａ成分と、例えば微細孔形成剤として有機スルホン酸金属塩化合物、ポリオキシアルキレン系ポリエーテル化合物等を含有するポリエステルｂ成分とを、公知の芯鞘型複合紡糸装置を用いて前者が芯部に、後者が鞘部に位置するように溶融紡糸し、その後でアルカリ化合物の水溶液により、ポリエステルｂ成分中の微細孔形成剤を２重量％以上溶出して、鞘部の大気側表面およびその近傍に多数の微細孔を形成させる方法をあげることができる。ポリエステルｂ成分に含有される微細孔形成剤としては、下記式で示すことができるスルホン酸金属塩が最も好ましい。 As a method for producing such a core-sheath type polyester composite fiber, a polyester a component containing 5.0% by weight or more of a matting agent, for example, an organic sulfonic acid metal salt compound or a polyoxyalkylene type as a micropore forming agent A polyester b component containing a polyether compound or the like is melt-spun using a known core-sheath type composite spinning apparatus so that the former is located in the core and the latter is located in the sheath, and then an aqueous alkali compound solution is used. A method of eluting 2% by weight or more of the fine pore forming agent in the polyester b component to form a large number of fine pores on the atmosphere side surface of the sheath and the vicinity thereof can be mentioned. As the micropore forming agent contained in the polyester b component, a sulfonic acid metal salt that can be represented by the following formula is most preferable.
かかるスルホン酸金属塩は、具体的には３−カルボメトキシベンゼンスルホン酸ナトリウム−５−カルボン酸ナトリウム、３−カルボメトキシベンゼンスルホン酸ナトリウム−５−カルボン酸カリウム、３−カルボメトキシベンゼンスルホン酸カリウム−５−カルボン酸カリウム、３−カルボキシベンゼンスルホン酸ナトリウム−５−カルボン酸ナトリウム、３−ヒドロキシエトキシカルボニルベンゼンスルホン酸ナトリウム−５−カルボン酸１／２マグネシウム、ベンゼンスルホン酸ナトリウム−３，５−ジカルボン酸マグネシウム１／２等をあげることができる。上記スルホン酸金属塩は１種のみを単独で使用しても、２種以上を併用してもよい。 Specific examples of the metal sulfonate include sodium 3-carbomethoxybenzenesulfonate-5-carboxylate, sodium 3-carbomethoxybenzenesulfonate-5-carboxylate, potassium 3-carbomethoxybenzenesulfonate- 5-carboxylate potassium, sodium 3-carboxybenzenesulfonate-5-carboxylate sodium, 3-hydroxyethoxycarbonylbenzenesulfonate sodium-5-carboxylate 1/2 magnesium, sodium benzenesulfonate-3,5-dicarboxylic acid Examples include magnesium 1/2. The said sulfonic acid metal salt may be used individually by 1 type, or may use 2 or more types together.
上記微細孔形成剤の添加量は、少ないと最終的に得られる芯鞘型ポリエステル複合繊維の吸水性が低下し、一方多いと紡糸時にトラブルが発生しやすくなるので、ポリエステルを構成する酸成分に対して０．５〜５モル％の範囲が適当である。 If the addition amount of the fine pore forming agent is small, the water-absorbing property of the core-sheath polyester composite fiber finally obtained is lowered. On the other hand, if the amount is too large, troubles are likely to occur during spinning. A range of 0.5 to 5 mol% is suitable.
複合繊維のポリエステルｂ成分に多数の微細孔を形成させるためには、アルカリ化合物水溶液による処理が好ましい。かかる処理は、ポリエステルａ成分とｂ成分からなる繊維を溶融複合紡糸した後の任意の段階で行うことができ、伸度小のポリエステルマルチフィラメント糸Ａと、複合繊維からなる伸度大のポリエステルマルチフィラメント糸Ｂとのポリエステル複合仮撚加工糸とする加熱加工等の加工を施したのち、さらには布帛にしたのちに行って布帛状態で本発明のポリエステル複合仮撚加工糸としてもよい。ここで使用するアルカリ化合物としては、水酸化ナトリウム、水酸化カリウム、テトラメチルアンモニウムハイドロオキサイト、炭酸ナトリウム、炭酸カリウム等をあげることができる。なかでも、水酸化ナトリウム、水酸化カリウムが特に好ましい。かかるアルカリ化合物の濃度は、アルカリ化合物の種類、処理条件等によって異なるが、通常０．０１〜４０重量％の範囲が好ましく、０．１〜３０重量％の範囲が特に好ましい。処理温度は常温〜１００℃の範囲が好ましく、処理時間は１分〜４時間の範囲で通常行われる。また、このアルカリ化合物の水溶液の処理によって溶出除去する量は繊維重量に対して２重量％以上（より好ましくは５〜４０重量％）であることが好ましい。 In order to form a large number of fine pores in the polyester b component of the composite fiber, treatment with an aqueous alkali compound solution is preferred. Such a treatment can be performed at any stage after melt-combined spinning of the fibers composed of the polyester a component and the b component. The polyester multifilament yarn A having a low elongation and the polyester multifilament having a large elongation composed of a composite fiber are used. The polyester composite false twisted yarn with the filament yarn B may be subjected to processing such as heat treatment, and then further processed into a fabric to be used as the polyester composite false twisted yarn of the present invention in a fabric state. Examples of the alkali compound used here include sodium hydroxide, potassium hydroxide, tetramethylammonium hydroxide, sodium carbonate, potassium carbonate and the like. Of these, sodium hydroxide and potassium hydroxide are particularly preferable. The concentration of such an alkali compound varies depending on the type of alkali compound, processing conditions, etc., but is usually preferably in the range of 0.01 to 40% by weight, particularly preferably in the range of 0.1 to 30% by weight. The treatment temperature is preferably in the range of room temperature to 100 ° C., and the treatment time is usually in the range of 1 minute to 4 hours. Further, the amount of elution and removal by the treatment of the aqueous solution of the alkali compound is preferably 2% by weight or more (more preferably 5 to 40% by weight) with respect to the fiber weight.
本発明のポリエステル複合仮撚加工糸は、上記の伸度小のポリエステルマルチフィラメント糸Ａと、複合繊維からなる伸度大のポリエステルマルチフィラメント糸Ｂからなるが、ポリエステルマルチフィラメント糸Ａとポリエステルマルチフィラメント糸Ｂとの重量比は３：７〜１：９の割合であることが好ましい。さらには、本発明の目的が損なわれない範囲であれば、第３の糸条が含まれていてもなんらさしつかえない。 The polyester composite false twisted yarn of the present invention is composed of the above-mentioned low-elongation polyester multifilament yarn A and high-elongation polyester multifilament yarn B composed of composite fibers. Polyester multifilament yarn A and polyester multifilament The weight ratio with the yarn B is preferably a ratio of 3: 7 to 1: 9. Furthermore, even if the third yarn is included as long as the object of the present invention is not impaired, there is no problem.
また、前記ポリエステルマルチフィラメント糸Ａとポリエステルマルチフィラメント糸Ｂの総繊度は、特に限定されないが、かさ高性、布帛表面のドライ感、フィブリル感、コシ、反発性を得る上で、捲き付き糸の総繊度を芯糸の総繊度以上とすることが好ましく、ポリエステル複合仮撚加工糸内において、ポリエステルマルチフィラメント糸Ｂの総繊度を７０〜３５０ｄｔｅｘ、ポリエステルマルチフィラメント糸Ａの総繊度を５０〜１５０ｄｔｅｘの範囲とすることが好ましい。また、ポリエステルマルチフィラメント糸Ａとポリエステルマルチフィラメント糸Ｂの単繊維繊度は、１．５〜５．０ｄｔｅｘの範囲とすることが好ましい。 Further, the total fineness of the polyester multifilament yarn A and the polyester multifilament yarn B is not particularly limited, but in order to obtain bulkiness, dryness of the fabric surface, fibrillation, stiffness, and resilience, The total fineness is preferably equal to or greater than the total fineness of the core yarn. In the polyester composite false twisted yarn, the total fineness of the polyester multifilament yarn B is 70 to 350 dtex, and the total fineness of the polyester multifilament yarn A is 50 to 150 dtex. It is preferable to be in the range. The single fiber fineness of the polyester multifilament yarn A and the polyester multifilament yarn B is preferably in the range of 1.5 to 5.0 dtex.
このような、本発明のポリエステル複合仮撚加工糸は例えば次のような製造方法によって得ることができる。
まず、前記ポリエステルマルチフィラメント糸Ｂであるが、鞘成分ポリマーに前記の微細孔形成剤を添加する。この添加時期は、ポリエステルを溶融紡糸する以前の任意の段階でよく、例えばポリエステルの原料中に添加配合しても、ポリエステルの合成中に添加してもよい。微細孔形成剤としては、前記のスルホン酸金属塩が最も好ましい。このようなスルホン酸金属塩が０．５〜５モル％含有するポリエステルをポリエステルｂ成分とし、酸化チタンを５〜２０重量％（好ましくは７〜１３重量％）含有するポリエステルをポリエステルａ成分とする。本発明で用いるポリエステルマルチフィラメント糸Ｂとなる複合繊維は、これらａ成分とｂ成分とをチップ状とし、通常の芯鞘型複合紡糸装置から２７０〜３１０℃の紡糸温度で紡糸口金から溶融吐出し、吐出ポリマーを冷却固化し、油剤を付与した後、これを２０００〜４０００ｍ／分、好ましくは２５００〜３５００ｍ／分で引取り、未延伸糸（部分配向糸）としてワインダーに巻き取ることにより得ることができる。
Such a polyester composite false twisted yarn of the present invention can be obtained, for example, by the following production method.
First, for the polyester multifilament yarn B, the micropore forming agent is added to the sheath component polymer. This addition time may be any stage before the polyester is melt-spun. For example, it may be added to the polyester raw material or added during the synthesis of the polyester. As the micropore forming agent, the sulfonic acid metal salt is most preferable. A polyester containing 0.5 to 5 mol% of such a sulfonic acid metal salt is used as the polyester b component, and a polyester containing 5 to 20 wt% (preferably 7 to 13 wt%) of titanium oxide is used as the polyester a component. . The composite fiber to be used as the polyester multifilament yarn B used in the present invention is formed by chipping the a component and the b component from a spinneret at a spinning temperature of 270 to 310 ° C. from a normal core-sheath compound spinning device. After cooling and solidifying the discharged polymer and applying an oil agent, the polymer is taken up at 2000 to 4000 m / min, preferably 2500 to 3500 m / min, and wound around a winder as undrawn yarn (partially oriented yarn). Can do.
一方、ポリエステルマルチフィラメント糸Ａは、通常のポリエステルをチップ状とし、２７０〜３１０℃の紡糸温度で紡糸口金から溶融吐出し、吐出ポリマーを冷却固化し、油剤を付与した後、これを５００〜２５００ｍ／分、好ましくは８００〜１５００ｍ／分で引取り、未延伸糸としてワインダーに巻き取る。更に、延伸機を用い速度６００〜１２００ｍ／ｍｉｎ、加熱ローラー温度８０〜１５０℃、延伸倍率２．０〜４．０にて延伸することにより得ることができる。 On the other hand, the polyester multifilament yarn A is made from ordinary polyester in a chip shape, melted and discharged from a spinneret at a spinning temperature of 270 to 310 ° C., the discharged polymer is cooled and solidified, and an oil agent is applied thereto. / Min, preferably 800-1500 m / min, and wound around a winder as undrawn yarn. Furthermore, it can be obtained by stretching at a speed of 600 to 1200 m / min, a heating roller temperature of 80 to 150 ° C., and a stretching ratio of 2.0 to 4.0 using a stretching machine.
次いで、両糸条を用いて、従来公知のスパンライク用仮撚２層構造糸の製造方法により本発明のポリエステル複合仮撚加工糸は得ることができる。すなわち、前記ポリエステルマルチフィラメント糸Ａとポリエステルマルチフィラメント糸Ｂと引き揃えて空気交絡処理を施したのち、０．８倍以上の延伸倍率で同時延伸仮撚捲縮加工を施す方法である。その際、交絡数３０〜８０個／ｍ、ヒーター温度１２０〜１９０℃、仮撚数２１００〜２８００Ｔ／ｍ、延伸倍率０．８〜１．１倍の範囲が好ましく、仮撚具としては、３軸摩擦片デイスク式仮撚具、ベルト式仮撚具、ピン式仮撚具などが例示される。 Next, using both yarns, the polyester composite false twisted yarn of the present invention can be obtained by a conventionally known method for producing a spun-like false twist two-layer structured yarn. That is, after the polyester multifilament yarn A and the polyester multifilament yarn B are aligned and subjected to an air entanglement treatment, a simultaneous drawing false twist crimping process is performed at a draw ratio of 0.8 times or more. At that time, the number of entanglements is 30 to 80 / m, the heater temperature is 120 to 190 ° C., the number of false twists is 2100 to 2800 T / m, and the draw ratio is 0.8 to 1.1 times. A shaft friction piece disk type false twisting tool, a belt type false twisting tool, a pin type false twisting tool and the like are exemplified.
かくして得られた仮撚加工糸は、伸度の小さいポリエステルマルチフィラメント糸Ａがコア部に位置し、その周りに伸度の大きいポリエステルマルチフィラメント糸Ｂがシース部として巻きついた２層構造を有するものである。 The false twisted yarn thus obtained has a two-layer structure in which a polyester multifilament yarn A having a low elongation is located in the core portion, and a polyester multifilament yarn B having a high elongation is wound around it as a sheath portion. Is.
この仮撚加工糸を本発明の微細孔を有するポリエステル複合仮撚加工糸とするには、アルカリ化合物水溶液による処理を行うことが好ましい。かかる処理は、ポリエステルａ成分とｂ成分からなる繊維を溶融複合紡糸した後の任意の段階で行うことができるが、この２層構造を有する仮撚加工糸の段階か、あるいは布帛にしたのちに布帛状態で行うことが好ましい。 In order to use the false twisted yarn as the polyester composite false twisted yarn having fine holes of the present invention, it is preferable to perform a treatment with an alkaline compound aqueous solution. Such treatment can be carried out at any stage after the melt composite spinning of the fibers comprising the polyester a component and the b component, but at the stage of false twisting yarn having this two-layer structure or after making the fabric It is preferable to carry out in a fabric state.
布帛段階で処理する場合には、処理前の仮撚加工糸を用いて、必要に応じて適度な撚りを施し、所望の組織に製編織した後、製編織された布帛に通常のアルカリ減量加工を施すことにより、ポリエステルマルチフィラメント糸Ｂを構成する複合繊維の鞘部分がアルカリ減量され微細孔が形成された本発明のポリエステル複合仮撚加工糸、及びもう一つの本発明である該ポリエステル複合仮撚加工糸を含むポリエステル布帛が得られる。 When processing at the fabric stage, using the untwisted pre-twisted yarn, applying appropriate twist as necessary, knitting and weaving to the desired structure, then normal alkali weight loss processing on the knitted and woven fabric The polyester composite false twisted yarn of the present invention in which the sheath portion of the composite fiber constituting the polyester multifilament yarn B is reduced in alkali to form fine pores, and another polyester composite temporary yarn of the present invention. A polyester fabric containing twisted yarn is obtained.
得られた布帛は、常法の染色仕上げ加工が施されてもよい。さらには、常法の撥水加工、起毛加工、紫外線遮蔽あるいは抗菌剤、消臭剤、防虫剤、蓄光剤、再帰反射剤、マイナスイオン発生剤等の機能を付与する各種加工を付加適用してもよい。 The obtained fabric may be subjected to a conventional dyeing finishing process. In addition, various processes that provide functions such as conventional water-repellent processing, brushed processing, ultraviolet shielding or antibacterial agents, deodorants, insect repellents, phosphorescent agents, retroreflective agents, and negative ion generators are additionally applied. Also good.
布帛中に占める本発明のポリエステル複合仮撚加工糸の割合は、必ずしも１００％である必要はないが、優れた吸水性、ドライ感、防透性を得るためにはその割合が多いほど好ましい。また、通常の染色仕上げ加工が施されても何らさしつかえない。 The proportion of the polyester composite false twisted yarn of the present invention in the fabric is not necessarily 100%, but it is preferable that the proportion is larger in order to obtain excellent water absorption, dry feeling and permeation resistance. Moreover, there is no problem even if a normal dyeing finish is applied.
このようにして得られる本発明のポリエステル複合仮撚加工糸は、繊維に前記のような微細孔が形成されているため、繊維物性を良好に保ちながら、微細孔の毛細管現象により優れた吸水性が発現され、同時に、微細孔による繊維表面に凹凸により光が乱反射と、複合仮撚加工糸のシース部の艶消し剤による光散乱効果により防透性がより一層向上している。もう一つの本発明である上記のポリエステル複合仮撚加工糸を含むポリエステル布帛は、良好なかさ高性、スパン感を有するとともに吸水性、ドライ感、防透性にも優れたスパンライクなポリエステル布帛となり、白衣、薄い色のボトム等に好適に用いられる。 The polyester composite false twisted yarn of the present invention thus obtained has excellent water absorption due to the capillary phenomenon of the fine pores while maintaining the fiber physical properties because the fine pores as described above are formed in the fibers. At the same time, the light permeation is further improved by the irregular reflection of light on the fiber surface due to the fine holes and the light scattering effect of the matting agent on the sheath portion of the composite false twisted yarn. Another polyester fabric comprising the above-described polyester composite false twisted yarn is a spun-like polyester fabric that has good bulkiness and span feeling, and is also excellent in water absorption, dry feeling and permeability. , White coat, light-colored bottom, etc.
以下、実施例により本発明をさらに詳細に説明するが、本発明はこれらによって何ら限定されるものではない。なお、実施例中の各物性は下記の方法により測定したものである。 EXAMPLES Hereinafter, although an Example demonstrates this invention further in detail, this invention is not limited at all by these. In addition, each physical property in an Example is measured with the following method.
（１）伸度
ＪＩＳ Ｌ １０１３−１９９８ ７．５．１により伸度（％）を測定した。
(1) Elongation Elongation (%) was measured according to JIS L 1013-1998 7.5.1.
（２）固有粘度
３５℃のオルソクロロフェノール溶液で測定した。
(2) Intrinsic viscosity Measured with an orthochlorophenol solution at 35 ° C.
（３）吸水率
布帛を乾燥して得られる試料（３０ｃｍ×３０ｃｍ）を水中に３０分以上浸漬した後、家庭用電機洗濯機の脱水機で５分間脱水し、脱水後試料の質量Ｘ（ｇ）を求める。また、別途ＪＩＳ Ｌ０１０５−１９９８に規定する絶乾状態における試料の質量Ｙ（ｇ）を求める。そして、下記式により吸水率を計算する。これを５回繰返し、その平均値を吸水率（％）とする。
吸水率（％）＝（（Ｘ−Ｙ）／Ｙ）×１００
(3) Water absorption rate After a sample (30 cm × 30 cm) obtained by drying the fabric is immersed in water for 30 minutes or more, it is dehydrated with a dehydrator of a household electric washing machine for 5 minutes, and the weight of the sample after dehydration X (g ) Moreover, the mass Y (g) of the sample in the absolutely dry state prescribed | regulated separately to JISL0105-1998 is calculated | required. And a water absorption is calculated by the following formula. This is repeated 5 times, and the average value is defined as the water absorption rate (%).
Water absorption rate (%) = ((XY) / Y) × 100
（４）防透性
防透性（％）＝（（標準黒色裏当て板（反射率６％）上での反射率）／（標準白色裏当て板（反射率９１％）上での反射率））×１００
防透性の数値については、黒色裏当て板と白色裏当て板とで、裏当てされたときの反射率が等しければ防透性１００％の完全な防透性体であることを示し、一方、黒色裏当て板で裏当てされたときの反射率が０％であれば防透性０％となり完全な透明体であることを示す。なお、ｎ数５で測定し、その平均値を求めた。
(4) Permeability Permeability (%) = ((reflectance on standard black backing plate (reflectance 6%)) / (reflectance on standard white backing plate (reflectivity 91%)) )) X 100
As for the numerical value of the permeation resistance, it indicates that the black backing plate and the white backing plate have a perfect permeation resistance of 100% if the reflectance when backing is equal, If the reflectance when backed by a black backing plate is 0%, the permeation resistance is 0%, indicating a complete transparent body. In addition, it measured by n number 5, and calculated | required the average value.
（５）微多孔の大きさ
繊維表面を３０００倍の電子顕微鏡写真に撮り測定した。なお、任意にｎ数１０で測定し、その平均値を求めた。
(5) Microporous size The fiber surface was measured by taking an electron micrograph of 3000 times. In addition, it measured arbitrarily by n number 10 and calculated | required the average value.
［実施例１］
通常のポリエチレンテレフタレートの重合反応工程で、テレフタル酸ジメチルに対して１．３モル％の３−カルボメトキシベンゼンスルホン酸ナトリウム−５−カルボン酸ナトリウム（微細孔形成剤）を添加し、固有粘度０．６０、軟化点２５８℃のポリエステルｂ成分を得た。
[Example 1]
In a normal polymerization reaction step of polyethylene terephthalate, 1.3 mol% of sodium 3-carbomethoxybenzenesulfonate-5-carboxylate (micropore forming agent) with respect to dimethyl terephthalate was added, and an intrinsic viscosity of 0. A polyester b component having a softening point of 258 ° C. was obtained.
一方、酸化チタンを１０重量％含有する、固有粘度０．６０、軟化点２５７℃の通常のポリエチレンテレフタレートをポリエステルａ成分とした。 On the other hand, normal polyethylene terephthalate containing 10% by weight of titanium oxide and having an intrinsic viscosity of 0.60 and a softening point of 257 ° C. was used as the polyester a component.
ついで、ポリエステルａ成分とポリエステルｂ成分とを用いて、通常の芯鞘複合紡糸装置から２８０℃で溶融紡糸し、２８００ｍ／分の速度で引取り、延伸することなく巻取り、１４０ｄｔｅｘ／３６ｆｉｌの芯鞘型ポリエステル複合繊維（複合面積比、ポリエステルａ成分：ポリエステルｂ成分＝７０：３０）伸度１５０％を得た（ポリエステルマルチフィラメントＢ）。 Next, using polyester a component and polyester b component, melt spinning at 280 ° C. from a normal core-sheath composite spinning apparatus, taking up at a speed of 2800 m / min, winding without stretching, and 140 dtex / 36 fil core A sheath-type polyester composite fiber (composite area ratio, polyester a component: polyester b component = 70: 30), an elongation of 150% was obtained (polyester multifilament B).
一方、固有粘度０．６６のポリエチレンテレフタレートを用いて、溶融紡糸して１３００ｍ／分で一旦巻取り、低伸度側糸条として１６５ｄｔｅｘ／２４ｆｉｌ、伸度３６０％の未延伸糸とし、延伸速度１２００ｍ／ｍｉｎ、加熱ローラ温度８５℃、セットヒーター温度２３０℃、延伸倍率３．０倍にて、５５ｄｔｅｘ／２４ｆｉｌ、伸度３５％の延伸糸を得た（ポリエステルマルチフィラメントＡ）。 On the other hand, polyethylene terephthalate having an intrinsic viscosity of 0.66 was melt-spun and wound up once at 1300 m / min, and as a low elongation side yarn, 165 dtex / 24 fil, an unstretched yarn with an elongation of 360%, and a drawing speed of 1200 m / D, heated roller temperature of 85 ° C., set heater temperature of 230 ° C., draw ratio of 3.0, and a drawn yarn of 55 dtex / 24 fil and elongation of 35% was obtained (polyester multifilament A).
次いで、両糸条を引き揃えて空気交絡処理および同時延伸仮撚捲縮加工を行った。その際、空気交絡処理は、インターレースノズルを用い、オーバーフィード率１．０％、圧空圧０．３ＭＰａ（３ｋｇｆ／ｃｍ２）で４５個／ｍの交絡を付与した。また、同時延伸仮撚捲縮加工は、延伸倍率０．８倍、仮撚数２５００Ｔ／ｍ、ヒーター温度１８０℃、糸速３５０ｍ／分の条件で行った。 Next, both yarns were aligned and subjected to air entanglement treatment and simultaneous drawing false twist crimping. At that time, an interlace nozzle was used for the air entanglement process, and 45 / m entanglement was applied at an overfeed rate of 1.0% and a pneumatic pressure of 0.3 MPa (3 kgf / cm 2 ). The simultaneous drawing false twist crimping was performed under the conditions of a draw ratio of 0.8 times, a false twist number of 2500 T / m, a heater temperature of 180 ° C., and a yarn speed of 350 m / min.
かくして得られた仮撚加工糸は交互撚り２層構造を有しており、かつコア部を構成する糸条の伸度は３５％であり、他方、シース部を構成する糸条の伸度は７５％であった。また、コア部を構成する糸条とシース部を構成する糸条とが部分的に交絡（３０個／ｍ）していた。 The false twisted yarn thus obtained has an alternately twisted two-layer structure, and the elongation of the yarn constituting the core portion is 35%, while the elongation of the yarn constituting the sheath portion is 75%. Further, the yarn constituting the core portion and the yarn constituting the sheath portion were partially entangled (30 pieces / m).
該仮撚加工糸を経糸および緯糸に用いてタフタ織物を製織した。次いで、該織物を液流染色機を用いて沸騰水で２０分間リラックス処理し、引き続きプリセット処理を行った後、３．５重量％の水酸化ナトリウム水溶液で沸騰温度でアルカリ減量処理（減量率２０％）を行った。さらに、染色、ファイナルセット処理を行い、ポリエステル複合仮撚加工糸からなる布帛とした。 A taffeta fabric was woven using the false twisted yarn as warp and weft. Subsequently, the fabric was relaxed with boiling water for 20 minutes using a liquid dyeing machine, followed by a preset treatment, followed by an alkali weight reduction treatment (weight loss rate of 20 with a 3.5 wt% aqueous sodium hydroxide solution at a boiling temperature). %). Furthermore, dyeing and final setting treatment were performed to obtain a fabric made of polyester composite false twisted yarn.
このとき布帛を構成するポリエステル複合仮撚加工糸は、そのシース部を構成する芯鞘型ポリエステル複合繊維において、繊維表面およびその近傍に微細孔がほぼ繊維軸方向に多数配列しており、ｎ数１０で微細孔の大きさを測定したところ、巾は０．０１μｍ〜２μｍで分布しており、その平均値は１．２μｍであった。また、長さは０．３μｍ〜１２μｍで分布しており、その平均値は８μｍであった。 At this time, in the polyester composite false twisted yarn constituting the fabric, in the core-sheath type polyester composite fiber constituting the sheath portion, a large number of micropores are arranged in the fiber axis direction in the vicinity of the fiber surface, and n number When the size of the micropores was measured at 10, the width was distributed between 0.01 μm and 2 μm, and the average value was 1.2 μm. Moreover, the length was distributed by 0.3 micrometer-12 micrometers, and the average value was 8 micrometers.
得られた布帛の防透性は９３．６％、吸水率は６８％であり、繊維物性に優れており、良好なかさ高性、スパン感を有するとともに吸水性、ドライ感、防透性にも優れたスパンライクなポリエステル布帛であった。 The obtained fabric has a permeability of 93.6% and a water absorption of 68%, and has excellent fiber properties, and has a good bulkiness and span feeling, as well as water absorption, dry feeling and permeability. It was an excellent spunlike polyester fabric.
［実施例２］
実施例１において、ポリエステルマルチフィラメントＢの紡糸速度を３２００ｍ／分に変更し、繊度をあわせるために紡糸口金を変更すること以外は実施例１と同様にして２００ｄｔｅｘ／３６ｆｉｌ、伸度１２０％の未延伸糸を得た。また、実施例１において、ポリエステルマルチフィラメントＡの紡糸速度を４５００ｍ／分に変更し、延伸を行わない以外は実施例１と同様にして、１１０ｄｔｅｘ／２４ｆｉｌ、伸度７０％の未延伸糸（部分配向糸）を得た。
[Example 2]
In Example 1, the spinning speed of polyester multifilament B was changed to 3200 m / min, and the spinneret was changed in order to match the fineness. In the same manner as in Example 1, 200 dtex / 36 fil, 120% elongation was not achieved. A drawn yarn was obtained. Further, in Example 1, the spinning speed of the polyester multifilament A was changed to 4500 m / min, and in the same manner as in Example 1 except that no drawing was performed, 110 dtex / 24 fil, undrawn yarn with 70% elongation (partial) Oriented yarn) was obtained.
次いで、両糸条を引き揃えて空気交絡処理および同時延伸仮撚捲縮加工を行った。その際、空気交絡処理は、インターレースノズルを用い、オーバーフィード率０．５％、圧空圧０．３ＭＰａ（３ｋｇｆ／ｃｍ２）で４０個／ｍの交絡を付与した。また、同時延伸仮撚捲縮加工は、延伸倍率１．１倍、仮撚数２５００Ｔ／ｍ、ヒーター温度２１０℃、糸速２５０ｍ／分の条件で行った。 Next, both yarns were aligned and subjected to air entanglement treatment and simultaneous drawing false twist crimping. At that time, an interlace nozzle was used for the air entanglement treatment, and 40 / m2 entanglement was imparted at an overfeed rate of 0.5% and a pneumatic pressure of 0.3 MPa (3 kgf / cm 2 ). The simultaneous drawing false twist crimping was performed under the conditions of a draw ratio of 1.1 times, a false twist number of 2500 T / m, a heater temperature of 210 ° C., and a yarn speed of 250 m / min.
かくして得られた仮撚加工糸は交互撚り２層構造を有しており、かつコア部を構成する糸条の伸度は３０％であり、他方、シース部を構成する糸条の伸度は６５％であった。また、コア部を構成する糸条とシース部を構成する糸条とが部分的に交絡（２８個／ｍ）していた。 The false twisted yarn thus obtained has an alternately twisted two-layer structure, and the elongation of the yarn constituting the core portion is 30%, while the elongation of the yarn constituting the sheath portion is 65%. Further, the yarn constituting the core portion and the yarn constituting the sheath portion were partially entangled (28 pieces / m).
該仮撚加工糸を経糸および緯糸に用いて実施例１と同様に、製織しリラックス処理、プリセット処理を行った後、でアルカリ減量処理（減量率２０％）を行い、ポリエステル複合仮撚加工糸を含む布帛とした。さらに、染色、ファイナルセット処理を行った。得られた織物の防透性は９１．８％、吸水率は６２％であり、繊維物性に優れており、良好なかさ高性、スパン感を有するとともに吸水性、ドライ感、防透性にも優れたスパンライクなポリエステル布帛であった。 Using the false twisted yarn as warp and weft, weaving, relaxing and presetting in the same manner as in Example 1, followed by alkali weight loss treatment (weight loss rate 20%), polyester composite false twisted yarn It was set as the fabric containing. Further, staining and final set processing were performed. The resulting woven fabric has 91.8% permeation resistance and 62% water absorption, has excellent fiber properties, has a good bulkiness and span feeling, and is also water-absorbing, dry and permeation resistant. It was an excellent spunlike polyester fabric.
[実施例３]
実施例１において、ポリエステルマルチフィラメント糸Ｂを構成する芯鞘型ポリエステル複合繊維の芯部（ポリエステルａ成分）と鞘部（ポリエステルｂ成分）との複合面積比をポリエステルａ成分：ポリエステルｂ成分＝７０：３０に変更すること以外は、実施例１と同様に製織、リラックス処理、プリセット処理、アルカリ減量処理、染色、ファイナルセット処理を行い、ポリエステル複合仮撚加工糸を含む織物とした。得られた織物の防透性は９９．０％、吸水率は６８％であり、繊維物性に優れており、良好なかさ高性、スパン感を有するとともに吸水性、ドライ感、防透性にも優れたスパンライクなポリエステル布帛であった。
[Example 3]
In Example 1, the composite area ratio of the core part (polyester a component) and the sheath part (polyester b component) of the core-sheath type polyester composite fiber constituting the polyester multifilament yarn B is defined as polyester a component: polyester b component = 70. : Weaving, relaxation treatment, preset treatment, alkali weight loss treatment, dyeing, and final set treatment were carried out in the same manner as in Example 1 except that the amount was changed to 30 to obtain a woven fabric containing polyester composite false twisted yarn. The resulting fabric has a permeability of 99.0% and a water absorption of 68%, and is excellent in fiber properties, has a good bulkiness and span feeling, and is also water-absorbent, dry and permeable. It was an excellent spunlike polyester fabric.
［比較例１］
実施例１において、ポリエステルマルチフィラメント糸Ｂを形成するポリエステル単糸である芯鞘型ポリエステル複合繊維の、芯部（ポリエステルａ成分）と鞘部（ポリエステルｂ成分）との複合面積比をポリエステルａ成分：ポリエステルｂ成分＝１５：８５に変更すること以外は、実施例１と同様にして仮撚加工糸を得て、製織、減量、染色仕上げ加工を行い、仮撚加工糸を含む織物とした。得られた織物の防透性は６５．８％、吸水率は８０％であった。
[Comparative Example 1]
In Example 1, the composite area ratio of the core portion (polyester a component) and the sheath portion (polyester b component) of the core-sheath type polyester composite fiber that is a polyester single yarn forming the polyester multifilament yarn B is determined as the polyester a component. : Polyester b component = 15: 85 The false twisted yarn was obtained in the same manner as in Example 1 and subjected to weaving, weight loss, and dyeing finishing to obtain a woven fabric containing false twisted yarn. The resulting fabric had a moisture permeability of 65.8% and a water absorption of 80%.
［比較例２］
実施例１において、ポリエステルマルチフィラメント糸Ｂを構成するポリマーであるポリエステルｂ成分として、ポリエチレンテレフタレートの重合反応工程で、テレフタル酸ジメチルに対して０．７モル％のリン酸ジエステルカルシウム塩と、リン酸ジエステルカルシウム塩に対して０．９倍モルの酢酸カルシウムを添加し、固有粘度０．６４、軟化点２５９℃のポリエステルｂ成分を用いること以外は、実施例１と同様に、製織・リラックス処理・プリセット処理・アルカリ減量処理・染色・ファイナルセット処理を行い、仮撚加工糸を含む織物を得た。
[Comparative Example 2]
In Example 1, as a polyester b component which is a polymer constituting the polyester multifilament yarn B, 0.7 mol% of a phosphoric diester calcium salt with respect to dimethyl terephthalate and phosphoric acid in a polymerization reaction step of polyethylene terephthalate Weaving / relaxation treatment, as in Example 1, except that 0.9 times mole of calcium acetate is added to the diester calcium salt and the polyester b component having an intrinsic viscosity of 0.64 and a softening point of 259 ° C. is used. Preset treatment, alkali weight loss treatment, dyeing, and final set treatment were performed to obtain a woven fabric including false twisted yarn.
このとき、織物を構成する仮撚加工糸のシース部に存在する芯鞘型ポリエステル複合繊維において、繊維表面およびその近傍には微細孔がほぼ繊維軸方向に多数配列していたが、ｎ数１０で該微細孔の大きさを測定したところ、巾の平均値は０．４μｍであり、繊維軸方向の長さの平均値は０．８μｍであった。得られた織物の防透性は９８．３％、吸水率は５２％であった。 At this time, in the core-sheath type polyester composite fiber existing in the sheath portion of the false twisted yarn constituting the woven fabric, a large number of micropores were arranged in the fiber axis direction in the vicinity of the fiber surface. When the size of the micropores was measured, the average value of the width was 0.4 μm, and the average value of the length in the fiber axis direction was 0.8 μm. The resulting fabric had a permeability of 98.3% and a water absorption of 52%.
[比較例３]
実施例１において、仮撚加工糸のシース部に存在する芯鞘型ポリエステル複合繊維のポリエステルａ成分に含まれる酸化チタンの含有量を１重量％に変更すること以外は、実施例１と同様に製織・リラックス処理・プリセット処理・アルカリ減量処理・染色・ファイナルセット処理を行い、仮撚加工糸を含む織物を得た。得られた織物の防透性は６８．９％、吸水率は７６％であった。
[Comparative Example 3]
In Example 1, except that the content of titanium oxide contained in the polyester a component of the core-sheath polyester composite fiber present in the sheath portion of the false twisted yarn is changed to 1% by weight, the same as in Example 1. Weaving, relaxation treatment, preset treatment, alkali weight loss treatment, dyeing and final set treatment were performed to obtain a woven fabric containing false twisted yarn. The resulting fabric had a permeability of 68.9% and a water absorption of 76%.
[比較例４]
実施例１において、仮撚加工糸のシース部に存在する芯鞘型ポリエステル複合繊維のポリエステルｂ成分に微細孔形成剤を含有しないものを用いること以外は実施例１と同様に製織・リラックス処理・プリセット処理・アルカリ減量処理・染色・ファイナルセット処理を行い、仮撚加工糸を含む織物を得た。得られた織物の防透性は８２％、吸水率は２４％であった。
[Comparative Example 4]
In Example 1, weaving / relaxation treatment as in Example 1 except that the polyester b component of the core-sheath polyester composite fiber present in the sheath portion of the false twisted yarn does not contain a micropore forming agent. Preset treatment, alkali weight loss treatment, dyeing, and final set treatment were performed to obtain a woven fabric including false twisted yarn. The resulting fabric had a permeability of 82% and a water absorption of 24%.
本発明のポリエステル複合仮撚加工糸は、繊維物性を良好に保ちながら、優れた吸水性が発現され、同時に防透性がより一層向上した糸条である。また本発明のポリエステル複合仮撚加工糸を含むポリエステル布帛は、良好なかさ高性、スパン感を有するとともに吸水性、ドライ感、防透性にも優れたスパンライクなポリエステル布帛となる。 The polyester composite false twisted yarn of the present invention is a yarn that exhibits excellent water absorption while maintaining good fiber properties and at the same time has further improved permeation resistance. Moreover, the polyester fabric containing the polyester composite false twisted yarn of the present invention is a spun-like polyester fabric that has good bulkiness and span feeling, and is excellent in water absorption, dry feeling, and permeation resistance.
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